]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
cpufreq: intel_pstate: Fix limits issue with operation mode switching
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 27 Feb 2017 23:05:01 +0000 (00:05 +0100)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Tue, 28 Feb 2017 12:55:52 +0000 (13:55 +0100)
commitc3a49c8991212e1ef795c7a46881ac5cc7766993
treefc5e53d4c1700681df745dfc9c45afc93f3fb8f3
parent17b4eaf475684bd12aeecf358a7ea6e3bec871a5
cpufreq: intel_pstate: Fix limits issue with operation mode switching

There is a problem with intel_pstate operation mode switching
introduced by commit fb1fe1041c04 (cpufreq: intel_pstate: Operation
mode control from sysfs), because the global sysfs limits are
preserved across operation modes while per-policy limits are
reinitialized from scratch on a mode switch and both sets of limits
may get out of sync this way.

Fix that by always reinitializing the global limits upon the
registration of the driver.

Fixes: fb1fe1041c04 (cpufreq: intel_pstate: Operation mode control from sysfs)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
drivers/cpufreq/intel_pstate.c